ANALYSIS OF THE INFLUENCE OF THE COMMON RAIL FUEL SYSTEM OPERATION MODE ON THE PARAMETERS OF THE FUEL INJECTION PROCESS INTO THE DIESEL COMBUSTION CHAMBER
Abstract
Currently, environmental standards are established for diesel engines, which, depending on their purpose, differ both in the number of normalized toxic components and in their maximum permissible levels. The implementation of the current requirements for the content of toxic substances in diesel exhaust gases while ensuring the required level of economic and power indicators is associated with the organization of joint management of all the main systems of the power plant. Such systems include the fuel system, the boost system, the exhaust gas recirculation and neutralization systems. The works of recent years show that further improvement of the common rail fuel systems used on diesels is associated with an increase in the injection pressure and control of the injection rate. To analyze the influence of pressure in the fuel accumulator and the duration of the control pulse on the parameters of the injection process, a method for determining the injection characteristics using the MADI chamber and taking into account the pressure oscillations accompanying the process of registering pressure changes in it has been developed. The influence of the pressure value in the fuel accumulator and the duration of the control pulses arriving at the electromagnetic valve of the common rail injector on the shape of the leading edge of the injection rates and wave phenomena occurring in the high-pressure line at the outlet of the nozzle is investigated.
About the Authors
Boris D. Golomonov
MADI
Russian Federation
Russian Federation
student
Andrey Y. Dunin
MADI
Russian Federation
Russian Federation
Ph. D., associate professor
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